Quoting Aaron Brown,

> Once I hacked changes to let the kerberos libraries compile, I found that 
> I couldn't build mount_nfs because the kerberos types are never defined 
> anywhere apparently. Also, the #define KERBEROS in rlogin is commented 
> out of the makefile.

> Are these problems happening because the kerberos support is 
> incomplete/not ready? Or am I just doing something wrong?

Kerberos support in the NFS code is very incomplete (hardly there in fact),
and the types not being defined are an example of that. I don't know if
someone ever even started on completing it.

- Frank